and give it a new name. Now you have an exact copy of your original design. By doing it this way you keep all important settings (layer-stack, mesh & simulation setup).
Another way:
in the original design do STRG-A (selects everything), STRG-C (makes a copy into the clipboard). Then open a new design and press STRG-V (insert).
if you want to copy a whole layout, just do:
"File -> Save Design As"
and give it a new name. Now you have an exact copy of your original design. By doing it this way you keep all important settings (layer-stack, mesh & simulation setup).
Another way:
in the original design do STRG-A (selects everything), STRG-C (makes a copy into the clipboard).
Then open a new design and press STRG-V (insert).
Hope it helps!
Thomas